Bioabsorbable polymeric medical device

Abstract

In embodiments there is described a cardiovascular tube-shaped lockable and expandable bioabsorbable scaffold having a low immunogenicity manufactured from a crystallizable bioabsorbable polymer composition or blend.

What is claimed is: 
     
       1. A bioabsorbable scaffold comprising expansion-crystallizable bioabsorbable polymer, the scaffold having a proximal open end and a distal open end, and being crimpable and expandable, comprising:
 a first multicomponent strut pattern helically coursing from the proximal open end to the distal open end of the scaffold; and 
 a second multicomponent strut pattern helically coursing from the proximal open end to the distal open end of the scaffold. 
 
     
     
       2. The scaffold of  claim 1 , wherein the first multicomponent strut pattern is substantially the same in configuration throughout the scaffold. 
     
     
       3. The scaffold of  claim 1 , wherein the second multicomponent strut pattern is substantially the same in configuration throughout the scaffold. 
     
     
       4. The scaffold of  claim 1 , wherein the first and second multicomponent strut patterns are substantially the same in configuration throughout the scaffold. 
     
     
       5. The scaffold of  claim 1 , wherein the component of the first multicomponent strut pattern that opposes from about 120° to about 180° the component of the second multicomponent strut pattern are substantially the same in configuration. 
     
     
       6. The scaffold of  claim 5 , wherein the components of the first and second multicomponent struts that oppose form a stylized H configuration, a stylized X configuration, a stylized S configuration, a stylized 8 configuration, or a stylized I configuration. 
     
     
       7. The scaffold of  claim 1 , further comprising a third multicomponent strut pattern helically coursing from the proximal open end to the distal open end of the scaffold. 
     
     
       8. The scaffold of  claim 7 , further comprising a fourth multicomponent strut pattern helically coursing from said proximal open end to said distal open end of said scaffold. 
     
     
       9. The scaffold of  claim 8 , further comprising a fifth multicomponent strut pattern helically coursing from said proximal open end to said distal open end of said scaffold. 
     
     
       10. The scaffold of  claim 1 , wherein each helix of both of the multicomponent strut patterns turns about the scaffold in a left-handed screw direction. 
     
     
       11. The scaffold of  claim 1  wherein each helix of both of the multicomponent strut patterns turns about the scaffold in a right-handed screw direction. 
     
     
       12. The scaffold of  claim 1 , wherein at least one helix of both of the multicomponent strut patterns turns about the scaffold in a left-handed screw direction while another helix turns in a right-handed screw direction. 
     
     
       13. The scaffold of  claim 1 , wherein all of the helices of the multicomponent strut patterns turns about the scaffold in the same handed direction. 
     
     
       14. A bioabsorbable stent having a proximal open end and a distal open end, and comprising a plurality of helically coursing multicomponent strut patterns from the proximal open end to the distal open end of the stent, wherein the stent comprises expansion-crystallizable bioabsorbable polymer. 
     
     
       15. The stent of  claim 14 , wherein each helix of the multicomponent strut patterns turns about the stent in a left-handed screw direction. 
     
     
       16. The stent of  claim 14 , wherein each helix of both of the multicomponent strut patterns turns about the stent in a right-handed screw direction. 
     
     
       17. The stent of  claim 14 , wherein at least one helix of the multicomponent strut patterns turns in a left-handed screw direction while another helix turns about the stent in a right-handed screw direction. 
     
     
       18. The stent of  claim 14 , wherein all of the helices of the multicomponent strut patterns turn about the stent in the same handed direction.